The Project

Overview

Rampion 1 Wind Farm South Downs View

Location

Key Components

A typical offshore wind farm will be made up of an array of offshore wind turbines that are fixed to the seabed. The wind turbines feed green power into offshore substations via underwater cables.

isometric illustration of offshore wind farm
isometric illustration of offshore wind farm

A typical offshore wind farm will be made up of an array of offshore wind turbines that are fixed to the seabed. The wind turbines feed green power into offshore substations via underwater cables.

Isometric illustration of offshore substation

Offshore substations collect and moderate the voltage of electricity. Stepped up to a high voltage, electricity can travel long distances very efficiently. These substations are typically housed on platforms near to the wind turbines.

Underwater export cables transmit the electricity to a landfall location where the offshore cables are jointed to the onshore cables. The cables can be drilled under a beach. From there,  the cables can be run underground through to an onshore substation. The role of an onshore substation is to transform the electricity to flow at the correct voltage and frequency into the nation’s transmission system. 

isometric illustration of city being powered by offshore wind farm
Play Video

Feeling fascinated by the technology?

The animation above introduces how the original Rampion Offshore Wind Farm works. If you and your family want to learn more, please book a trip to the fantastic Rampion Visitor Centre in Brighton.

Design Process

Work is ongoing to establish:

wide shot of Rampion 1 Wind Farm with atmospheric grey clouds

Key Statistics

The design options for Rampion 2 sit within a maximum envelope that has been established for the purpose of assessing the maximum potential impacts of the project. These key statistics for Rampion 2 are taken from our Scoping Report.

At least 13km off the Sussex coast. This is the same minimum distance from shore as Rampion.

315km2 area is being searched for optimal turbine placement – there is a lot of variation in depth over this area. The sea is between 15m to 60m deep.

Up to 116 turbines, with maximum 325m tip height above LAT (Lowest Astronomical Tide)
– technology has been evolving fast and state of the art turbines are much more powerful than those used for Rampion 1!

Up to 1200 MW of electricity able to power 1m+ homes equivalent.

76km2 area of search, emerging to shoreline at Climping, running underground without disturbing the beach. The Sussex coastline is densely populated, with lots of built infrastructure. This severely restricted the selection of the viable cable landfall area.

Route for a 36-37km underground cable is being explored from Climping on the coast to Bolney in mid Sussex. We submitted an application for a connection to National Grid, as the owner and operator of the UK’s electricity transmission system. Following their assessments they have offered Rampion 2 a connection to the Bolney National Grid Substation. This existing substation can accommodate the large output of electricity that Rampion 2 could supply. We will seek the route with the least disturbance to local ecology, geographical features and sea users.

A new onshore substation is needed in the vicinity of Bolney to control the electricity flow onto the national transmission system. A range of sites, up to 5km away from Bolney were assessed leading to a current shortlist of 3 candidate sites.

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